Astronomers See Planet Formation ‘Time Zero’ in an Alien Solar System
SMRTR summary
A cosmic keyhole has given astronomers a glimpse into the birth of planets. Using the James Webb Space Telescope and Chile's ALMA array, researchers have peered through a gap in the dusty cocoon surrounding HOPS-315, a baby star 1,400 light-years away in Orion.
This stellar nursery offers a window into our own solar system's infancy. The team detected silicon monoxide gas and crystalline silicates in a disk around HOPS-315, signs of mineral grains condensing as the disk cools. These grains could be the seeds of future planets.
Lead author Melissa McClure calls HOPS-315 "a unicorn" due to its young age and fortuitous angle. The observations suggest conditions for forming the solar system's oldest solids exist close to the star, very early in its life.
While not directly observing calcium-aluminum-rich inclusions (CAIs), the findings align with models of their formation. This rare view into a star's earliest moments may help unravel the mysteries of our own cosmic origins.
SMRTR provides this summary for quick context. The original article belongs to Scientific American.
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